@misc{indiciaefad2adf46f51,
  title = {End-hall thrusters},
  author = {Kaufman, H. R. and Robinson, R. S. and Day, M. L. and Haag, T. W.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900055515},
  note = {Source identifier: 19900055515}
}